The Fortress of Nysa is an ancient structure located in present-day Turkey, near the town of Aydın. It dates back to the Hellenistic period and was built on a hilltop, providing a strategic vantage point. The fortress served as a military stronghold and a refuge for the local population during times of conflict. The site is notable for its impressive architecture, including well-preserved walls and towers. It is associated with the ancient city of Nysa, which was known for its cultural and economic significance in the region. Today, the fortress is a popular archaeological site, attracting visitors interested in history and ancient civilizations.